Everett l



E. L. BLAKESLEE.

BOTTLE CAP.

- APPLICATION FILED 050.9, 1920.

Patented 0a. 3,1922.

Patented Oct. 3, 1922.

umrso STATES. PATENT OFFICE.

EVERETT L. 'BLAKESLEE, or SEATTLE, WASi-IINGTON, assrsnoa To AMERICA BOTTLE car COMPANY.

BOTTLE CAP.

Application filed December 9,1920. Serial No. 429,3 3.

' To all who m) ir'iizay concern: o

Be it known that I, EVERETT L. Blames Luna citizen of the United States, and resident of the city of Seattle, county, of King, State of l s ashington, have invented certain new and useful Improvements in Bottle .Uaps, of which the following. is a specification. v

This invention relates to bottle caps,.more particularly to improvements in bottle caps of that type disclosed and claimed in the United States Patent Number 1,158,622, issued to me November 2, 1915.

I have discovered in the use of the cap covered by the above mentioned patent that when the corking member used in capping the bottles draws the cap down upon the bottle rim, the apron of the cap has a de cided tendency to open, or flare, and thus leave an open space between the same and bottle rim'wherein dirt may collect.

It has also been discovered that the fiat disk portion disclosed in the above patent does not co-act with the annular corking member as efficiently as does a slightly curved disk with a downwardly turned edge connecting with the annular corking member.

The object of the present invention is therefore to provide a cap which avoids the.

above mentioned defects bythe provision of an apron which shall be in contact along a continuous line upon the bottle lip for the purpose of absolutely excluding all dirt; to produce a cap having' a corking member possessing the greatest lateral elasticity possible toproduce by means of the form or shape thereof in a non-distensible material. such as paper or the like.

In accomplishing these and other objects of the invention, I have provided the improved details of construction, the preferred forms of which are illustratedin the ac companying drawings, wherein Figure l is an elevation of a bottle with one form of the cap in' place thereon;'the partly in sec-f cap and bottle being shown tion for better illustration.

Figure 2 is a similar view illustrating an alternative or modified construction.

Referring more in detail to the draw- I designates aibottle of the type for which the present cap is intended and which has a rounded rim. 2 surrounding the mouth thereof, and a recessed, or dovetailed, annularinterior surface 3 formed above an annular shoulder 4.

The cap embodied by the present invention, in its preferred construction, is formed of an upwardly and outwardly convex disk portion 5' turned downwardly about the edge as at 6, and then radially at T, the

latter portion thus forming an annular corking member. adapted: to fit into the dovetailed portion of the rim and effectively cork the same.

The material of the cap is bent upwardly and inwardly from the portion 7, as shown at S, with the groove 9 upon the peripheral surface thereof, and is then turned outwardly from the portion 8 to form the protect-ing flange or apron 10; the spring or curvature of said apron being sharper or more abrupt at. the inner portion than the curvature of the corresponding portion of the'bottle rim, in order thatthere will be a space 11 formed intermediate the apron and rim. 1

The apron is formed to engage the rim upon an annular line near the periphery of the latter, as indicated at 12.

The result of the above construction is that the several portions of the cap, viz: the disk 5, corking member 7 and apron 10 are given the greatest possible relative flexibility obtainable from a non-distensible material; that any pressure within the bottle arising from decomposition of the contents thereof may easily distort the convex disk 7, thereby withdrawing the'corking member 7 partially from its seat, and thus, by reason of the looseness thereof. give warning of undesirable conditions within the bottle; that the corking member, when forced rad1- ally against the dovetailed face 3 produces a component force parallel to the arms of the bottle, thus drawing the cap down upon the bottle lip and causing the apronlO to have a continuous line contact around said bottle lip.

The apron 10 may be constructed to only partially cover the bottle lip 2, stopping substantially at the contact line 12, as shown in Figure 1; or it may be carried past conzdentures 13 therein, each indenture passing 110 partially through the thicknessofthe ma terial, as disclosed and claimed in the above mentioned patent previously issued to me. My invention may be made of any size and constructed of any material deemedfconvenient and suitable for a device of this char- 7 acter, and while I have illustrated and-de scribed a form of construction found desirable in materializing my invention, I wish to include in this application for Letters Patent all; mechanical equivalents and substitutes that may fairly be considered to come Within the scope and purview of myinvention as defined in the appended claim. I

Having thus disclosed (my lnvention' so i that others skilled in the'art may be enabled 'tofconstruct' and to use the sameywhati I claim as new therein and desire to secure byLetters Patent, is:

a The combination withaibottle having a roundedrim about the mouth thereof with a dovetailed, annular interior formed above comprising a central concave disk tportion turned downwardly about its edge and then extending radially forming an annular corking member adapted toseat againstsaid shoulder within the dovetailed interior of the' neckgandbeing bent upwardly and in Signed at North Portland, Oregon, this 22nd day of November, 1920.

EVERETT L. L ESLEE. I

an annular shouldenofa cap for said bottle 

